Fig. 3: Electrocatalytic CO2 reduction and CO reduction performance of the catalysts.

A Scheme of the cascade catalysis mechanism over AgCu SANP; B FE results of Cu NP, AgCu SAA, AgCu SANP, and Ag NP catalysts toward CO2RR at −0.65 V; C Total current density of Cu NP, AgCu SAA, AgCu SANP, and Ag NP catalysts at −0.65 V; D Performances comparison of AgCu SANP and reported results; E FE results of Cu NP, AgCu SAA, and AgCu SANP toward CO reduction at −0.65 V; F Long-term stability results of AgCu SANP toward CO2RR; G FE results of AgCu SANP toward CO2RR feeding with different CO2 concentrations. Note that the FE of H2 products from competitive hydrogen evolution reaction was not quantified. All the error bars are obtained from three independent experiments. Source data are provided as a Source Data file.